I. Bidding Content

Well drilling bidding by Liaoning Ji Hua 3523 Company.

II. Technical Requirements: In accordance with national standards, based on the actual situation of the 3523 factory area, after on-site exploration, reasonable operations will be carried out.  

III. Bidding Method: Public bidding, using the lowest price bidding method, with quality standards as the benchmark.

IV. Bidder Qualification Requirements

1. The bidder has good credit;

2. The bidder must be a manufacturing enterprise and have relevant qualifications for production and operation;

3. This bidding does not accept joint bids from two or more suppliers.

V. Qualification Review

Suppliers must pass the qualification review of Liaoning Ji Hua 3523 Company before bidding. Those who fail the qualification review are not eligible to participate in the bidding.

VI. Bidding Address and Requirements

1. Bidding time and opening time:

October 23, 2015, 8:50 am to receive bids, 9:00 am for formal opening.

Bids will not be accepted at other times.

2. The bidding bag includes the following materials (sealed and marked "Do not open before opening"):

(1) The supplier's valid business license, organization code certificate, tax registration certificate (including national and local taxes), production license, legal representative's ID card, water-related qualifications. Copies of the above materials are stamped with the company seal; legalrepresentative's certificate or power of attorney (original).

(2) Bidding letter (with detailed breakdown of quotation, well drilling plan, etc.)

3. Bidding address and contact information:

Bidding location: No. 1 factory building, 3rd floor, small meeting room, Liaoning Ji Hua 3523 Company

        Location: No. 12, Erjie, Shatuozi, Yaobao Town, Tieling County, Tieling City            

Postcode: 112609

Opening location: No. 1 factory building, 3rd floor, small meeting room, Liaoning Ji Hua 3523 Company

Contact number: 024-78717962 

Fax: 024-78717977 13842050409

Drilling Engineering Construction Plan

I. Project Overview

One well will be drilled in the factory area and residential area of Liaoning Ji Hua 3523 Special Equipment Co., Ltd. The drilling project includes the construction of a water well and the installation of a water pump. The water well has a diameter of 219mm and a depth of 150m. The water pump is installed at a depth of 80-120m.

II. Construction Period: 30 days/well.

III. Payment Method

1.  Performance bond payment method

Within 7 calendar days of signing the contract, Party B shall submit 10% of the total contract price to Party A in cash or by check. During the entire contract execution process, that is, after the completion of the project, installation, commissioning, testing, and operation are carried out on schedule and meet the acceptance requirements stipulated in the contract, Party A will return it to Party B within 28  days (interest-free).

2. Payment method:

30% of the total project cost will be prepaid within 5 days of the drilling equipment entering the site, 30% of the total project cost will be paid when the well depth reaches 100 meters, and 30% of the total project cost will be paid within 5 days after the completion of the well and acceptance by Party A. The remaining 10% of the total project cost will be retained as a quality assurance fund. If there are no quality problems after one year of completion and commissioning, the remaining payment will be paid within 15 days.

IV. Basic Technical Requirements for Drilling Engineering Construction

1. Water output requirement: 15-20t/h;

2. Well depth:  Estimated 150 meters, well inclination: less than 5 per 100 meters;

3. Well chamber: The wellhead should be above the ground30-50cm,to prevent accumulated water on the well chamber floor from flowing into the well;The wellhead should be sealed with waterproof clay,sealing depth from 3m above ground to 10m below ground.

4. Well diameter and well pipe: Open hole diameter 500mm, insert 325 mm wall thickness 6mmspiral steel pipe and filter pipe of the same diameter(national standard), final hole 219 mm, below the complete bedrock is a bare rock hole;

5. Well casing: It should have sufficient strength to withstand the lateral pressure of the stratum and artificial filling materials,welded steel pipes can be used;The annular space between the well casing and the well wall is filled withwaterproof clay,forming a clay sealing layer;

6. Gravel: Depending on the aquifer, input5-15mm filter material;

7.Surface sealing layer:Ensure that surface water does not seep down to cause pollution (depth not less than 10 meters);

8. Water-bearing layer: According to the test results, according to national standardsseal the water layer appropriately;

9. Underground horizontalpump room: Usecylindrical prefabricated components(Height: 1.7m ，Diameter: 1.5m ，Wall thickness: 10cm).Installed underground，·Exposed above ground10cm，`Waterproof layer at the bottom of the well，Upper part is a prefabricated component of the same specification，Equipped with a circular metal well coverAsMaintenanceopening,The length of the water pump pipe reserved outside the underground horizontal pump room is 3-5 meters;

10. Matching: Water pump, cable, etc., to achieve a turnkey project.

V. Main Construction Machinery and Equipment

1. Specifications and quantity of main materials

Table 1 Main Material Specifications and Quantity Table

2. Main machinery

Table 2 Main Machinery Statistics Table

VI. Quality Requirements

1. Quality objective: Meet design specifications and technical requirements;

2. Quality assurance system: To ensure engineering quality and ensure that the production process meets technical requirements, a complete technical management organization is established and implemented according to the quality system standard GB/T19001-1994-ISO9001:1994.

VII. Well Completion Process and Construction Scheme

1. Design and construction basis

1According to the water well water output requirements, the well depth and diameter of the well structure are designed, and the drilling rig type and corresponding auxiliary equipment are selected according to the geological conditions.

2Before drilling, the machine should be leveled, equipment arranged, materials stacked, tower erected, and drilling rig placed.

3Drilling in loose formations,It is best to use the impact drilling rig and clear water hydraulic step-by-step hole expansion method.

4Drilling in bedrock aquifers, it is best to useRotary core drilling,During the drilling process, the groundwater level andCirculation fluid hole disappearanceHydrogeological observations should be carried out.

5During the drilling process, description, layered soil sampling, water sampling, temperature measurement, etc. should be carried out according to technical requirements. The quality and quantity of sampling should also be ensured.

2. Well completion process:

1Before lowering the well pipe, the borehole wall, diameter, and depth should be checked to determine whether the borehole wall is regular and smooth. If irregular borehole walls such as reduced diameter are found, they must be repaired in time to ensure the smooth implementation of subsequent procedures, and the depth of the hole should be measured.

2Change the slurry. Press thin slurry or clear water into the bottom of the hole, and remove the thick slurry from the original hole from bottom to top. When the concentration of the mud slurry returning to the well is basically the same as that of the pressed thin slurry water, the slurry change is completed.

3Lowering the pipe. The pipe must be lowered according to the technical requirements. Install the well pipe centering device, welding work, and add2-4Pieces of pull plates,If necessary, a float plate must be added inside the pipe,The bottom of the pipe must be sealed with steel plate welding.

4Fill gravel. Put the selected gravel into the annular space between the well pipe filter and the borehole wall. According to the geological and technical requirements and the geological conditions, the static gravel filling method,Pipe external return water gravel filling method,Water pumping gravel filling method, etc.

5Water stop. The common method is clay water stop method. It is necessary to ensure the quality of clay, and ensure that it is filled in layers, filled layer by layer, and compacted.

6Well washing. The purpose of well washing is to thoroughly remove the blockage of rock cuttings and other materials in the well during drilling, and to extract the mud, powder, and fine sand sediments in the aquifer around the filter pipe to ensure the smooth flow of water from the aquifer.

7Before the well is accepted, a simple pumping test must be carried out to determine the actual exploitable water volume of the well. After the pump is started,30minWater samples are taken to measure the sand content and conduct water quality analysis sampling. Then, a well drilling engineering report is written.

8Well acceptance

The data and technical standards that must be available during well acceptance include the well acceptance form (including well structure, construction process, water volume, sand content, etc.). The well size is consistent with the acceptance form and meets the design requirements.

9The construction process of the recharge well is basically similar to that of the pumping well, and there are corresponding requirements for the filter and water recharge test.

③ Water well design and construction methods

1. Well design

According to the water demand this time, the purpose of this well drilling is to achieve15-20T(single well),The sand content is in accordance with national standards, the verticality of the deep well is within 5 degrees, and the well depth is150meters (see bedrock). Well diameter500mmThree diameter changes, pipe diameter325mm,273mm. According to this requirement, the well wall thickness is designed as6mmThe actual pipe is temporarily set at 60-80m，Filter pipe temporarily set at20m，The filter pipe is set in the aquifer. The well material is made of steel plate rolled pipe. The pipes are bevelled, welded, and4-6pieces200×800×6mmThe pull plates are welded to ensure that each section of the pipe head is firmly welded.The filter pipe uses perforated reinforcing bars, wire-wrapped mesh,The bottom of the well pipe is6mmthick steel plate. Filter material diameter recording position.

2. Construction methods

1Deep well is constructed using clear water rotary method,After the secondary diameter change, if complete bedrock is encountered, 219mm is used to drill to the required depth,Achieve the designed opening diameter500mmDepth150m。

2After the drilling rig is in place, the drilling rig must be absolutely stable, the drilling hole is round and straight. When lowering the pipe, a centering device is used to ensure that the well pipe is located in the center of the drilled hole. The drilling hole construction is strictly carried out in accordance with the safety operating procedures.

3Deep well construction is strictly in accordance with the client's requirements and contract. The well pipe welded joints are absolutely welded firmly.

4Before lowering the pipe, the preparation for lowering the pipe should be done, the time for lowering the pipe should be shortened as much as possible, and the integrity of the filter pipe should be strictly checked. When placing the filter material, it should be continuously and evenly filled along the outside of the well pipe. This well can be used for production water, mechanical cooling water, and domestic water.

The above construction and process requirements comply with the 2002 revised version of the Water and Cultural Relic Exploration Geological Survey Engineering Design issued by the State Development Planning Commission and the Ministry of Construction.