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- The traditional off-season of the tanker market is approaching, and the crude oil trade is mixed2023-08-02In midsummer, the crude oil tanker market ushers in the traditional off-season. Geopolitical factors have continued to drive changes in trade flows this year, with mixed fundamentals on the Americas route.
- Fill technology gaps! What is the "fixed casing" in western drilling?2023-05-12At the end of April, the first "casing-in-casing" shale gas horizontal well in Southwest Oil and Gas Field, which was guaranteed by Western Drilling Downhole Operation Company, was successfully completed in Changning Well H5-3. The "casing-in-casing" refracturing technology is blank, which has opened up a new technical path for improving the recovery of gas fields. At present, this well has entered the stage of oil testing and trial production.
- The first large-scale operation automation demonstration zone in China was completed2023-04-04Shengli Oilfield built the first large-scale operation automation demonstration area in China
- Another well over 9,000 meters deep in Xinjiang, China!2022-12-08
- Global oil and gas exploration and development have entered the stage of "jogging in small steps"2022-11-22Keywords: oil and gas exploration, oil and gas development, oil demand
- Canada wildfires cut oil output by 145,000 bpd2023-05-12Canada's energy sector is in trouble as forest fires shut down at least 145,000 oil equivalents a day in Canada's oil-rich province of Alberta.
- Liner Hanger Systems Assembly2023-02-14What Is Liner Hanger System?
As we mention in the Casing Liner article, Liner is a casing string that is not reaching the surface. We can use liner hanger system assembly to support & hinge the casing liner on the previous casing string in oil and gas drilling wells. - A little bit of knowledge every day—gradual cementing of well cementing2023-04-01Small knowledge of well cementing: graded cementing
- Hydraulic Set Liner Hanger2023-02-04Hydraulic Set Liner Hanger
The principal advantage of hydraulic set liner assemblies is that no rotation of the liner assembly is necessary to set the slips. The activation of the setting mechanism in a hydraulic-set liner hanger assembly is by creating a sufficient differential pressure to initiate the setting sequence. Normally, the creation of the differential pressure is by applying pressure down the drill string from the surface.
Because one threaded connection is necessary between the body and the lower sub (Drilling Subs) containing the hydraulic setting mechanism, this type of design provides increased pressure integrity. - A little knowledge every day - basic knowledge of well cementing2023-03-30Well cementing is one of the important links in the process of oil and gas well construction. Its main purpose is: to ensure the smooth progress of follow-up work; to establish oil and gas channels; to isolate oil, gas and water layers, to improve the service life of oil and gas wells and the recovery rate of oil and gas.
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