ear47mtete|2000EAAA04C0|hds100005279_db|News|Text|0xfbfff801010000009a01000001000a00
On December 3, 2018, the shb1-4hch well was successfully completed by Cavaville with MWD instrument. Shb1-4 HCH well has not only break our company’s high temperature deep slim hole wells records, but also created two world records on Φ 120.65 mm super slim hole both in TVD and well depth!
This well is a horizontal well with high difficulty, slim hole, ultra depth and large displacement, which is deployed by Northwest Oilfield Company of Sinopec. Design well depth is 8333.59 m, TVD is 7822.34m , KOP is 7603.00 m, build up rate is 20 ° slope / 30 m, 616.00m in horizontal level, borehole size is 120.65 mm, and the bottom hole temperature is 175 ℃.
The well is actually drilled to the depth of 8251.18m, and the strong drilling reaches 8255.51m. Monitoring sections is 785.81 m (7470 m to 8255.51 m), with a total of 15 drill, and the highest temperature is 173 ℃. The vertical depth is 7803.01 m, the bull 's-eye distance is 1.02 m.
Cavaville adopts imported high temperature and high pressure (175 ℃, 175 mpa) MWD tools, and finished by all the MWD engineers who have many years of experience in high temperature deep well construction, such as assembly, testing, debugging. Cavaville reduced downhole vibration damage to the instrument to ensure the safety of the project. Yan yunkang, the project manager, came to the site to guide the work, so as to ensure the stable and reliable performance of each drilling, and provided accurate data for directional well engineers, which provides a strong technical guarantee for the track control of Zhongyuan Petroleum Engineering Technology Company.
It took two months to complete the drilling of the well, which showed the comprehensive strength of our company in the field of high-temperature deep-well projects. This project won the unanimous recognition of colleagues in the industry and the owner companies.
Over the past three years, Cavaville has made great achievements in well monitoring and construction:
Sep. 2016: RP101C2 well was drilled to a depth of 7292.03m, achieving a breakthrough in track monitoring of 114.3mm ultra-deep and ultra-small Wells in China.
Sep. 2016: the completion and drilling depth of shunbei 2CH well was 8169.27m, which broke the deepest horizontal well slope depth record of northwest oilfield company, and set 5 drilling records in total.
August 2017: completed and drilled 8433.00m horizontal well in 2H shunbei evaluation, setting a world record for deepest horizontal well in 149.2mm hole;
January 2018: YueM6C1 well was drilled to a depth of 7409m, setting a new record for ultra-deep ultra-small hole test of 104.8mm in China;
May 2018: DB105X well was completed and drilled at a depth of 5113m, which was the first directional well in the piedmont structure of tazhidina block;
December 2018: shunbei 1-4hch well completed drilling depth of 8255.51m, setting two world records of 120.65mm ultra-small hole horizontal well depth and vertical depth.