Dec 29

Coal Bed Methane (CBM) is natural gas contained primarily (about 90% -100%) of methane (CH4) found in coal seams. Methane is also the major component in petroleum natural gas (about 70% – 90%) that is widely used today. CBM is generated from the microbiological process or thermal process in the coal seam and recognized as one of the cleanest fossil fuels. Indonesia has one of the largest CBM reserves in the world with a potential 453 trillion cubic feet (“Tcf”), more than double the country’s natural gas reserves. The South Sumatra Basin, the largest CBM basin in Indonesia, is estimated to contain in-place resources of approximately 183 Tcf; and the Kutai Basin, the third largest CBM basin in Indonesia, is estimated to contain in-place resources of approximately 80 Tcf (SPE, 2004).

CBM shale shaker

CBM shale shaker

GN has exported many sets of mud tank system to Indonesia for CBM project. The technique to exploit CBM is different with that applied to the fossil natural gas, while both share the common in terms of marketing and utilization. Simply, CBM is exploited by drilling shallow wells into coal seams, dewatering the seams, extracting the methane from the seams and finally compressing the methane.

When design the CBM mud tank system, you should consider the following points:

1 shale shaker inlet method, usually the CBM well is lower than oil drilling well, maybe they will not use overhead manifold, but they have a mud pit and a submersible slurry pump to shale shaker.

2 fine particles, CBM drilling may contain much fine particles, most of clients will use high speed centrifuge.

3 Mud tank height, it should be a little lower than oil well drilling mud tank system.

Continue reading »

written by GN solids Control \\ tags: , , , , ,

Sep 29

Many of GN clients use Ditch Witch rig and buy mud cleaning system from GN. Unlike other China Solids Control companies, they mainly only focus on oil gas drilling multitank big system, GN Solids Control is the most professional for compact Mud System for HDD or CBM in China.

Ditch Witch complete directional drills package including directional drilling rigs, fluids management system, drill pipe, and integrated electronics that enable the tracker operator to disable power to the drilling unit’s thrust and rotation.  Ditch Witch compact directional drilling rigs are ideal for small contractors and designed for easy setup on jobsites once considered too tight for directional drilling.

Ditch Witch rig mud cleaning system

GN Solids Control design and manufacture complete equipments for HDD (Horizontal

Directional Drilling) and CBM(Coal Bed Methane) drilling mud recycling system of :

150GPM / 350GPM / 500GPM / 800GPM / 1000GPM / 1500GPM /2000GPM.

GN150gpm mud system is specially designed for separating drilling cuttings from drilling mud within no dig processes. Due to the mini container dimensions, the mud recycling separation plant guarantees minimum setup times and an easy transportation. The mini system has been ready for operation on site and GN will dispatch engineer to provide first installation and commissioning to save customer’s time and connection work.

Continue reading »

written by GN solids Control \\ tags: , , , , , , ,