Well servicing fluid for trenchless directional drilling

Details Well servicing fluid for trenchless directional drilling Well servicing fluid for trenchless directional drilling

1997-04-01

1998-03-03

Tucker, Philip

Earth boring, well treating, and oil field chemistry

Earth boring

Contains organic component

507141, 507145, C09K 700, C09K 702

Patent

active

057234167

ABSTRACT:
Disclosed is a composition comprising a water swellable clay, and particularly a sodium montmorillonite clay such as bentonite, sodium carbonate, and a water-soluble biopolymer, and particularly a xanthan biopolymer. The composition when mixed with fresh water forms an aqueous drilling mud having the desirable fluid properties including a high gel strength profile of 10-second/10-minute/30-minute gel and a low API fluid loss for use in trenchless directional drilling including mini-horizontal directional drilling, guided boring, auger boring, pipe jacking, microtunneling, and river crossing. The composition mixed with an aqueous medium provides a water-based drilling mud applicable to trenchless directional drilling in an unconsolidated formation and particularly in an environment contaminated with salty water such as sea water. The composition contains a mixture of about 91 to 98% by weight of Wyoming bentonite, about 1 to 8% by weight of carbonate salt of alkali metal, and about 0.5 to 4% by weight of a selective xanthan biopolymer.

REFERENCES:
patent: 2433668 (1947-12-01), Jones
patent: 4242140 (1980-12-01), Alther
patent: 4267062 (1981-05-01), Byerley
patent: 4439328 (1984-03-01), Moity
patent: 4634538 (1987-01-01), Alexander
patent: 4647859 (1987-03-01), Son et al.
patent: 4743384 (1988-05-01), Lu et al.
patent: 5165479 (1992-11-01), Harris et al.
patent: 5305832 (1994-04-01), Gupta et al.
patent: 5330015 (1994-07-01), Donche et al.

Affiliated with

Also associated with

Rating

Well servicing fluid for trenchless directional drilling does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Well servicing fluid for trenchless directional drilling, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Well servicing fluid for trenchless directional drilling will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2247542