A method for injecting a portion of a drilling fluid waste into a well includes reducing a cross-sectional dimension of solids in a slurry. The slurry includes the drilling fluid waste. The method also includes measuring a property of the slurry, of the well, or both. The method also includes obtaining a model based at least partially upon the property. The model represents an interaction of the slurry with the well. The method also includes introducing an additive into the slurry in response to measuring the property, generating the model, or both. The method also includes injecting the slurry into the well after the additive is introduced.

A negative pressure shale shaker integrated with negative pressure generation and gas-liquid separation includes a base, a liquid inlet buffer tank, a screen frame assembly, a support frame, a vacuum hose, a damping spring, a screen frame inclination angle adjustment device, a drainage hose, a negative pressure automatic drainage device, a vacuum pan, a three-way pipe, a liquid mist separator, a connecting pipe, a vacuum pressure limiting valve, a silencer and a negative pressure fan. A drilling fluid containing cuttings, after entering the screen with a negative pressure thereunder, rapidly passes through the screen along with air into a vacuum chamber. The air in the vacuum chamber is directly drawn away through holes formed on the side plates of the screen frame by the negative pressure fan.

A thermo-chemical bio-reactor process and apparatus for decontaminating waste well drilling fluid and waste formation fracturing fluid. A roller supported power driven rotary drum is rotated about a horizontal axis and receives waste well fluid from a hopper that conveys the waste fluid into an inlet end of the rotary drum. A burner within the rotary drum is fired by a gaseous fuel and a gaseous oxidizer and develops sufficient heat to render the waste material to a dry and substantially chemically inert finely pulverized residue during transit through the rotary drum. Angulated waste agitation vanes are positioned in helically oriented arrays within the rotary drum to lift the waste material and cause it to descend through heat and flame within the rotary drum and to be conveyed to the outlet of the drum during processing.

A system for recycling drilling fluid. The system has a washer coupled to a drilling rig. The washer receives drill cuttings with entrained drilling fluid. The drilling fluid has a base, and the washing fluid has the same base fluid. The washer fluid is used to remove drilling fluid from the drill cuttings. The washed drill cuttings are sent to a shaker to separate the solids. The spent washing fluid is sent to a filter which separates solids and recovers the base fluid. The base fluid can then be used for drilling or washing.

A process for producing a base oil composition particularly adapted for use in oil-base drilling mud compositions. The process includes contacting drilling waste containing an oil-base mud phase with a solvent to produce a mixture of liquids and solids, separating the two phases, partially evaporating the liquids phase to produce an oil base composition substantially lacking low molecular weight carbon chain compounds and also lacking significant concentrations of benzene, toluene, xylene, and/or ethyl benzene, and having increased closed-cup flashpoint when compared to the oil-base mud phase in the drilling waste. The resulting base oil has enhanced health and safety characteristics for workers interacting with and otherwise exposed to the oil base composition during transporting, conditioning or using such compositions. The base oil produced and drilling methods using the recovered and recycled mud are also described.

There is disclosed a waste treatment process for a fossil-fuel extraction site (18, 40), comprising: processing extracted waste generated by a fossil-fuel extraction process to produce primary waste having a higher calorific value than the extracted waste; mixing the primary waste with secondary waste to generate pyrolysis feedstock, the secondary waste having a lower calorific value than the primary waste; pyrolysing the pyrolysis feedstock in a pyrolysis unit (32) to form pyrolysis char; and gasifying the pyrolysis char in a gasification unit (36) to form syngas and ash.

A system includes a skip, a first sensor and a conveying section. The skip includes a hollow interior to store solids therein. The skip further includes an inlet and an outlet. The first sensor is located adjacent the inlet to indicate that the interior is filled with solids up to a predetermined level. The conveying section is located downstream of the outlet and is in solids communication with the interior. After the first sensor indicates that the interior is filled with solids up to the predetermined level, the conveying section conveys solids away from the skip and the skip is emptied. A method of using the aforementioned system is also disclosed.

Embodiments herein relate to a method for recovering hydrocarbons from a formation including collecting and analyzing a formation sample, drilling operation data, and wellbore pressure measurement, estimating a reservoir and completion quality, and performing an oil field service in a region of the formation comprising the quality. In some embodiments, the formation sample is a solid collected from the drilling operation or includes cuttings or a core sample.

A drill cuttings processing system including a breaker mill. The breaker mill operates to pulverize drill cuttings. The breaker mill includes an outer housing, a drum operatively positioned in the outer housing, hammers operatively positioned in the drum, and a screen configured for discharge of pulverized drill cuttings. A method includes feeding drill cuttings to the breaker mill. The breaker mill is located at a drilling rig site or is attached to a drilling rig. The method includes pulverizing the drill cuttings within the breaker mill.

A system includes a flow line connected to a fluid and a suction line in fluid communication with the flow line, wherein the fluid is to carry cuttings from a borehole. The system also includes a flow line pump to move fluid via the suction line onto a surface of a cuttings separation conveyor, wherein the surface of the cuttings separation conveyor comprises a separation screen. The system also includes a cuttings container positioned to collect a portion of the cuttings from the separation conveyor